在Groovy中使用SAX Parser在XHTML中获取文本时，放弃自定义标记中的html标记 [英] Discard html tags within custom tags while getting text in XHTML using SAX Parser in Groovy

问题描述

因此，我试图在标签之间获取文本。到目前为止，我已取得成功。但有时当我的自定义标签中有特殊字符或html标签时，我无法获取文本。示例xml看起来像

 < records> 
< car name ='HSV Maloo'make ='Holden'year ='2006'> 
< ae_definedTermTitleBegin />澳大利亚< ae_definedTermTitleEnd /> 
< ae_clauseTitleBegin /> 1.02< u>会计条款< / u>< ae_clauseTitleEnd /> 
< / car> 
< car name ='P50'make ='Peel'year ='1962'> 
< ae_definedTermTitleBegin />马恩岛< ae_definedTermTitleEnd /> 
< ae_clauseTitleBegin /> 99厘米宽，59公斤重的小型街车法< ae_clauseTitleEnd /> 
< / car> 
< car name ='Royale'make ='Bugatti'year ='1931'> 
< ae_definedTermTitleBegin />法国< ae_definedTermTitleEnd /> 
< ae_clauseTitleBegin />最有价值的车在1500万美元< ae_clauseTitleEnd /> 
< / car> 
< / records> 
  

我得到的输出是

<$澳大利亚，马恩岛，法国]
[。，最小的街道法律汽车在99厘米宽，59公斤重量，最贵重车在1500万美元]

您可以看到'会计术语'缺失。我所得到的只是一个点。

sax解析器代码

  import javax.xml.parsers.SAXParserFactory 
 import org.xml.sax.helpers.DefaultHandler 
 import org.xml.sax。* 
 
 class SAXXMLParser extends DefaultHandler {
 def DefinedTermTitles = [] 
 def ClauseTitles = [] 
 def currentMessage 
 def countryFlag = false 
 
 void startElement（String ns，String localName，String qName，Attributes atts ）{
 switch（qName）{
'ae_clauseTitleBegin'：
 //messages.add(currentMessage）
 countryFlag = true; 
 break 
 
'ae_definedTermTitleBegin'：
 //messages.add(currentMessage）
 countryFlag = true; 
 break 
 
 
 void字符（char []字符，int偏移量，int长度）{
 if（countryFlag）{
 currentMessage = new String（chars，offset，length）
 println（currentMessage）
} 
} 
 
 void endElement（String ns，String localName，String qName） {
 switch（qName）{
'ae_clauseTitleEnd'：
 ClauseTitles.add（currentMessage）
 countryFlag = false; 
 break 
'ae_definedTermTitleEnd'：
 DefinedTermTitles.add（currentMessage）
 countryFlag = false; 
 break 
} 
} 
} 
  

解决方案

我对Groovy不熟悉，所以这里是一个Java解决方案。我相信这个翻译是直接的。

  import java.io.FileInputStream; 
 import java.io.InputStream; 
 import java.util.ArrayList; 
 
 import javax.xml.parsers.SAXParser; 
 import javax.xml.parsers.SAXParserFactory; 
 
导入org.xml.sax.Attributes; 
 import org.xml.sax.helpers.DefaultHandler; 
 
公共类SaxHandler扩展了DefaultHandler {
 ArrayList< String> DefinedTermTitles = new ArrayList<>（）; 
 ArrayList< String> ClauseTitles = new ArrayList<>（）; 
字符串currentMessage; 
 boolean countryFlag = false; 
 StringBuilder message = new StringBuilder（）; 
 
 public void startElement（String ns，String localName，String qName，Attributes atts）{
 switch（qName）{
 caseae_clauseTitleBegin：
 countryFlag = true ; 
休息; 
 
案例ae_definedTermTitleBegin：
 countryFlag = true; 
休息; 
 
 
 $ b $ public void characters（char [] chars，int offset，int length）{
 if（countryFlag）{
 message.append （新的字符串（字符，偏移量，长度））; 
 
 
 $ b $ public void endElement（String ns，String localName，String qName）{
 switch（qName）{
 caseae_clauseTitleEnd： 
 ClauseTitles.add（message.toString（））; 
 countryFlag = false; 
 message.setLength（0）; 
休息; 
 
 caseae_definedTermTitleEnd：
 DefinedTermTitles.add（message.toString（））; 
 countryFlag = false; 
 message.setLength（0）; 
休息; 
 
 
 
 public static void main（String argv []）{
 SAXParserFactory factory = SAXParserFactory.newInstance（）; 
尝试{
 String path =INPUT_PATH_HERE; 
 InputStream xmlInput = new FileInputStream（path +test.xml）; 
 SAXParser saxParser = factory.newSAXParser（）; 
 SaxHandler处理程序=新的SaxHandler（）; 
 saxParser.parse（xmlInput，handler）; 
 
 System.out.println（handler.DefinedTermTitles）; 
 System.out.println（handler.ClauseTitles）; 
 
} catch（Exception err）{
 err.printStackTrace（）; 
} 
} 
} 
  

澳大利亚，马恩岛，法国]
[1.02会计术语，最小的街道法定车辆99厘米宽，59公斤重，最贵重车1500万美元]

So I am trying to get the text between the tags. So far I have been successful. But sometimes when there are special characters or html tags inside my custom tags I am unable to get the text. The sample xml looks like

<records>
      <car name='HSV Maloo' make='Holden' year='2006'>
        <ae_definedTermTitleBegin />Australia<ae_definedTermTitleEnd />
        <ae_clauseTitleBegin />1.02 <u>Accounting Terms</u>.<ae_clauseTitleEnd />
      </car>
      <car name='P50' make='Peel' year='1962'>
        <ae_definedTermTitleBegin />Isle of Man<ae_definedTermTitleEnd />
        <ae_clauseTitleBegin />Smallest Street-Legal Car at 99cm wide and 59 kg in weight<ae_clauseTitleEnd />
      </car>
      <car name='Royale' make='Bugatti' year='1931'>
        <ae_definedTermTitleBegin />France<ae_definedTermTitleEnd />
        <ae_clauseTitleBegin />Most Valuable Car at $15 million<ae_clauseTitleEnd />
      </car>
    </records>

The output that I am getting is

[Australia, Isle of Man, France]
[., Smallest Street-Legal Car at 99cm wide and 59 kg in weight, Most Valuable Car at $15 million]

As you can seen that 'Accounting Terms' is missing. All I get is a dot. How do I correct this?

The sax parser code

import javax.xml.parsers.SAXParserFactory
import org.xml.sax.helpers.DefaultHandler
import org.xml.sax.*

class SAXXMLParser extends DefaultHandler {
    def DefinedTermTitles = []
    def ClauseTitles = []
    def currentMessage
    def countryFlag = false

    void startElement(String ns, String localName, String qName, Attributes atts) {
        switch (qName) {
            case 'ae_clauseTitleBegin':
            //messages.add(currentMessage)
                countryFlag = true;
                break

            case 'ae_definedTermTitleBegin':
                //messages.add(currentMessage)
                countryFlag = true; 
                break           
         }      
    }   

    void characters(char[] chars, int offset, int length) {
        if (countryFlag) {
            currentMessage = new String(chars, offset, length)
            println(currentMessage)
        }
    }

    void endElement(String ns, String localName, String qName) {
        switch (qName) {        
            case 'ae_clauseTitleEnd':
                ClauseTitles.add(currentMessage)
                countryFlag = false;
                break
            case 'ae_definedTermTitleEnd':
                DefinedTermTitles.add(currentMessage)
                countryFlag = false; 
                break
         }
    }
}

解决方案

I'm not familiar with Groovy so here is a solution in Java. I believe the translation is straighforward.

import java.io.FileInputStream;
import java.io.InputStream;
import java.util.ArrayList;

import javax.xml.parsers.SAXParser;
import javax.xml.parsers.SAXParserFactory;

import org.xml.sax.Attributes;
import org.xml.sax.helpers.DefaultHandler;

public class SaxHandler extends DefaultHandler {
    ArrayList<String> DefinedTermTitles = new ArrayList<>();
    ArrayList<String> ClauseTitles = new ArrayList<>();
    String currentMessage;
    boolean countryFlag = false;
    StringBuilder message = new StringBuilder();

    public void startElement(String ns, String localName, String qName, Attributes atts) {
        switch (qName) {
            case "ae_clauseTitleBegin":
                countryFlag = true;
                break;

            case "ae_definedTermTitleBegin":
                countryFlag = true; 
                break;           
         }      
    }   

    public void characters(char[] chars, int offset, int length) {
        if (countryFlag) {
            message.append(new String(chars, offset, length));
        }
    }

    public void endElement(String ns, String localName, String qName) {
        switch (qName) {        
            case "ae_clauseTitleEnd":
                ClauseTitles.add(message.toString());
                countryFlag = false;
                message.setLength(0);
                break;

            case "ae_definedTermTitleEnd":
                DefinedTermTitles.add(message.toString());
                countryFlag = false; 
                message.setLength(0);
                break;
         }
    }

    public static void main (String argv []) {
        SAXParserFactory factory = SAXParserFactory.newInstance();
        try {
            String path = "INPUT_PATH_HERE";
            InputStream xmlInput = new FileInputStream(path + "test.xml");
            SAXParser saxParser = factory.newSAXParser();
            SaxHandler handler   = new SaxHandler();
            saxParser.parse(xmlInput, handler);

            System.out.println(handler.DefinedTermTitles);
            System.out.println(handler.ClauseTitles);

        } catch (Exception err) {
            err.printStackTrace ();
        }
    }
}

Output

[Australia, Isle of Man, France]
[1.02 Accounting Terms., Smallest Street-Legal Car at 99cm wide and 59 kg in weight, Most Valuable Car at $15 million]

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